Mercedes W164 W203 W204 OM642 Oil Cap Gasket Rubber Seal Sealing A6420180080

Mercedes W164 W203 W204 OM642 Oil Cap Gasket Rubber Seal Sealing is an original lubrication system component designed for OM642 units in selected Mercedes models. The precisely manufactured flange with a gasket ensures a tight fit for the oil cap, which promotes stable engine operation and reduces the risk of leaks. Thanks to the factory fit, this component allows for efficient, technically correct maintenance.

Specifications and technical data

• SKU: A6420180080
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420180080
• Substitutable numbers: A6420180080, A 642 018 00 80
• Category: Other Engine Parts

Purpose and function in the lubrication system

The oil cap flange with gasket in the OM642 engine is responsible for a tight connection between the cap and the oil pan, which has a direct impact on maintaining the proper oil level and cleanliness in the engine compartment. In Mercedes W164, W203, and W204 series vehicles, the proper condition of this element is important during every oil change, periodic inspection, and diagnosis of potential leaks.

Using the original flange with gasket allows for maintaining factory assembly tolerances, which facilitates service and reduces the need for additional modifications. This solution is particularly beneficial for workshops specializing in OM642 engine maintenance and for users who care about compliance with the manufacturer's documentation.

Benefits of using the original flange

Choosing a component that complies with the factory specification brings a number of practical advantages:

• Stable lubrication system tightness – a properly selected gasket minimizes the risk of oil leaks in the area of the cap.
• Better service control – easier identification of potential leaks, as the flange works in a predictable, repeatable manner.
• Consistency with the OM642 engine design – no need to match replacements with uncertain parameters.
• Support for long-term operation – reduction of dirt in the lower part of the power unit and around the oil pan.

The element from this group is particularly recommended for tasks such as oil cap replacement, oil pan regeneration, or removing leaks in the lower part of the engine.

Product characteristics and condition

The presented flange with gasket comes from the Mercedes offer, which means maintaining geometry and materials consistent with factory solutions. The product is offered in a used condition, which allows for an economical restoration of the lubrication system's efficiency while maintaining the original design specification.

A used component of this type is a good choice in situations where compliance with the factory design is important, and at the same time, cost optimization of the repair is essential. Before installation, it is recommended to perform a standard visual inspection of the sealing surfaces and properly prepare the mounting seat in the vehicle.

Application in Mercedes models with OM642 engine

The oil cap flange with gasket is intended for OM642 units mounted in selected versions of the Mercedes W164, W203, and W204. Thanks to this, it can be used both for typical service maintenance and for more extensive work related to the lubrication system, such as oil pan replacement or sealing the lower part of the engine.

In workshop practice, this element works well as a supplementary part for repairs related to oil leaks, as well as for the reconstruction of power units after mileages requiring a more thorough inspection of the lubrication system.

Configuration expansion and additional information

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional gaskets, connectors, or mounts, check the available parts in the Other Mercedes category.

For those interested in comparing the characteristics of advanced power units and solutions used in sports vehicle variants, an article discussing design and operational differences may be helpful – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.

If you are considering using aftermarket components in modernization or repair projects, it is worth reading the guide on selecting such elements – you will find practical tips in the article The best used parts for tuning your car.